Ok, my 2013 XTS has 41000 miles on it. I've had it since new and the factory bumper to bumper warranty will be out in another 9000 miles. I will probably hit 50000 miles before the 4 years. I just got a letter from the dealer about the extended warranty offer. I usually make it a point to not buy extended warranty on anything I buy. But in this case I just might think about it. The car has been pretty reliable but with all the electronic stuff I'm not convinced of the future reliability. Any opinions?